Suction sweeper



Feb. 19 1924. A 1,483,976

n. E. HOOVER SUCTION SWEEPER' Filed Nov. 3. 1919 5 sheets-sheet 5 a l I I Rue/n60?" Feb; 19 9 i924,

Y- HOOVER subno SWEEP 5 s -sheet 4 III/I m Am Feb; 19 1924'. 1,483,976

. H. s. HOOVER SUCTION SWEEPER am m a, 191s .s sum-sheet 5 Wine/5;?- fiwmdmljoaer Patented Feb. 19,1924.

V --UNITED STATES 1,483,976 PATENT orries.

HOWARD EARL HOOVER. or OHIOAOO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO THE HOOVER COMPANY, or NORTH CANTON, OHIO, A CORPORATION or OHIO.

SUCTION SWEEPER.

. I Application filed November 3, 1919. Serial No.'385,348.

To all whom it may concern:

Be it known that 'I, HOWARD EARL HOOVER, a citizen of United States, residing at Chicago, in the county of Cook and State 01 5 Illinois, have invented a certain new and useful Im rovement in Suction Sweepers, of which t e following is. a specification. I My invention relates to a combined installed plant and motor driven brush ap- 10 paratus for suction sweeper. Generally speaking, the object of this invention is to .provide means whereby :a motor driven carpet agitating device and particularly a beatmg brush or a brushing and beating apparatus motor driven of any kind can be used in and with a nozzle while the suction appara-, tus associated therewith is placed at a distance, as for example in a stationary plant in the basement of the building. In the preferred form of m invention, I use a brush which has both a beating and a brushing effect and I drive it at a high rate of speed by means of a motor mounted on and associated withthe brush nozzle. A flexible conduit leads from the handle. to the ipe or conduit which connects with the insta led or station- 7 ary suction lant so that the nozzle can be moved free y about the room where the swee ing or cleaning is to be done. This flexi le conduit may connect with the hollow handle portion which is connected'with the nozzle as shown herein or may connect directly with the nozzle body as shown in an application of even date.

In the preferred form of my device, the nozzle is provided with a relatively wide open mouth. and this is preferably suplfl orted above the floor so that the carpet or oor covering will rise thereto and the mouth will be big enough to furnish a pro er field of operation for the beater and t e brush or the beatin brush.

. My invention is panying drawin s wherein- Fig. 1 is a p an view with partsbroken away; Fig. 2 1s a side elevatlon with parts broken away. I

Fig. 3 is a section along the line 3-3 of Fig.1; A ig. 4 is a plan view of an alternative form with parts broken away; Fig. 5 is a side elevation of the same;

Fig. 6 is a detail;

lus'trated in the accom- Fig. 7 is a diagrammatic View of an entire lant.

Li e parts are indicated by like characters in all the figures.

A is a movable suction head having along its'front side an enlarged brush chamber, A, havin .a downwardly 0 en wide suction mout A arranged to e held above A the floor by the rollers A adjacent the 'suction mouth. The arrangement is such that adjustment of the rollers A by rotating the entire suction head-about the rollers A will change the hei ht of the suction mouth or nozzle above t e floor. A A? are brush guard fingers extending across the open mouth to make it impossible for any rug or floor covering to be drawn up too far into the open mouth. Leading rearwardly from the brush chamber A is an enlarged bifurcated suction chamber, the two arms of which communicate with the brush chamber adjacent its two ends and are joined in a rotatable conduit connection sleeve A. The arrangement is such that the air may; be drawn off through the combined handle and pipe A communioatin with the sleeve A, and because a cross section of the air'passage as'shown decreases from the nozzle or suc-v tion mouth rearwardly toward the sleeve, the suction and velocity at the suction mouth will be less than that in the pipe.

B is a combined beating and swee ing brush, the two separate .functions of w ,ich are, by its shape and arrangement, combined in one unit, though obviously the beatin and swee ing devices might be separate This brus is rotatabl mounted upon the shaft B which shaft is anchored at either end in the housing. B B are thread guards surrounding the ends of the bearings to protect the bearings where the brush bears on the shaft from foulin a is a pulley on the brush whereby the be t B which is driven in turn by the ulley B rotates the brush; B is a re'movab e hand hole cover in the bottom of the head, whereby access may be had-to the ulle B for the purpose of adjustment of t e be t. Y

C is a motor enclosed within a casing as indicated. It is located in the a erture' through the head which is surrounded y and formed between the bifurcated arms of the suction chamber. The motor may be suspended in this aperture by straps or brackets substitute means for mounting the motor on the head is provided as follows: C G are bosses projecting from the forward end of the motor housing and adapted to engage the wall of the aperture or pocket in which the motor is mounted, to prevent a direct contact between the motor and such wall, thus leaving an air passage. 0 is a motor shaft. It is mounted at one end for rotation in the bearing sleeve C in the boss O. The wall of the head C is apertured as at C so that the boss 0 may extend inwardly. C is a thread uard screw-threaded on the bearing sleeve in the form of a cup having a perforated diaphragm intermediate its ends. Air may enter from the space between the motor and housing wall through the annular space between the boss G and the wall of the aperture 0 into the bottom of the cup,

thence it may pass through the perforations in the diaphragm in the cup to be discharged around the base of the pulley B thence such air will pass, due to the suction, forwardly or into the main current of air and thus keep the motor bearing clean.

A is a combined handle and conduit by which the portable suction head may be manipulated. It is mounted at its lower end on the hose ipe connection sleeve A, rotatably mounted etween the two arms of the bifurcated suction chamber. i

D is a handle stop pivoted on the portable head and slotted as at D to engage the stop in I) on the conduit A whereby it may be ocked in the upri ht osition shown in dotted lines, may e a lowed to assume the low position shown in dotted lines for cleaning under furniture and the like or may be held in full line position free to have aslight angular movement as-the hand of the operator swings back and forth.

In Figs. 4 and 5, I have shown an alternative form of my invention wherein I provide a yoke shaped conduit member E, rotatably connected to the suction chamber at points In this form of the device the motor is 7 13th day of mounted as previously suggested or in any other desired manner at the rear of the suction chamber but it is still surrounded b the two arms of the suction chamber. hese arms are pivotally connected to the suction chamber proper somewhat as indicated though in respect to these arrangements the drawing is to be considered as diagrammatic. lhe structure, however, involves the idea of the handle and conduit bail or yoke connected therewith, its two ends being pivotally attached to the head so as to establish a connection between the combined handleand conduit and the suction chamber of the head.

Referring to Figure 7, A is the suction head-C is a motor mounted on it. A is a combined handle and conduit by which it is manipulated; A is a flexible continuation of the conduit.

F is an installed suction plant F is a suction conduit, in the wall F of a building. F F are conduit outlets adapted to receive the flexible conduit A. F 18 an electric conductor by means of which current is, fur-.

nished to the motor C. F F are outlet connections adapted to receive the conductor 1".

I claim:

A suction sweeper comprising acasing having a nozzle provided with means whereby it is adapted be be supported above the surface to be cleaned and an inlet in com bination with a combined handle and'conduit pivotally connected with the casing, a carpet agitating device mounted near the inlet a drive housing extending rearwardly from the casing, a motor on said housing and a driving connection between the motor and a carpet agitating device within said housing, said motor and said drive housing being in rear of the pivotal connection of the combined handle and conduit to the casing.

In testimony whereof, I aflix'my signature in the resence of two witnesses this ctober, 1919;

nowann EARL noovna.

Witnesses Miriam. H 

